/Engine/Source/Runtime/Core/Public/Containers/Array.h
Insert
template<typename AliasElementType, typename std::enable_if_t< [TIsContainerElementTypeCopyable](API\Runtime\Core\Containers\TIsContainerElementTypeCopyable)< AliasElementType >::Value > *> void Append ( const typename [TContainerElementTypeCompatibility](API\Runtime\Core\Containers\TContainerElementTypeCompatibili-)< [ElementType](API\Runtime\Core\Containers\TArray\ElementType) >::CopyFromOtherType * Ptr, [SizeType](API\Runtime\Core\Containers\TArray\SizeType) Count )